LICHALP

Verrucaria delitescens Servít

Syn.: Amphoridium dolomiticum A. Massal. var. obtectum Arnold, Amphoridium obtectum (Arnold) Arnold non Verrucaria obtecta Müll. Arg.; incl. Verrucaria delitescens Servít f. mulazensis Servít

Lichenised. Poorly known taxon.

Substrate: calciferous rocks

Altitudinal distribution: alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: related to, or perhaps identical with V. caesiopsila and/or V. cryptica, with an endolithic thallus emerging with dots and brownish patches, immersed perithecia (to c. 0.4 mm in diam.) with a minute involucrellum around the ostiolar region, and ellipsoid ascospores (to c. 30 µm long); on dolomite and probably other calcareous rocks at high elevations; only known from the type locality in the Eastern Alps (Italy).